1.) Look at the shape of your graph. Wat patterns do you observe?
I observe that it starts out high, then makes a major drop, then goes up higher than before, and slides back down. Then, the line goes even higher than before, and again, it goes back down.
2.) What family is represented by the high peaks in your graph?
The alkaline metal family is represented by the peaks in my graph.
3.) What family is represented by the low points in your graph?
Group 17 (fluorine, chlorine, etc) is represented by the low points of the graph.
4.) What family is represented by the smaller peaks just before the high peaks in your graph?
The noble gasses are represented by the smaller peaks.
5.) What trends do you notice about the radii of the elements at the high peaks as you move from left to right on your graph? Look at your periodic table and find the element that represents each peak. What does each high peak begin in the periodic table?
The radii of the elements at the high peaks grow bigger. Each high peak represents a new period. The first peak represents sodium, the second one potassium, the third rubidium, and it goes on down the alkaline metal family. On the periodic table, all of these elements are on the column in the far right. They all start new periods.
6.) What happens to the radii of the elements between the two highest peaks? What does each of these groups of elements represent?
The radii of the elements in between the two highest peaks get smaller one at a time. They go 126, 125, 124, 123, 122, 121, etc. Each of these groups of elements represents a new column.
Going Further:
How can a graph such as the one you made help to predict the properties of elements that have not been discovered yet? How reliable do you think this would be? Explain.
A graph such as the one I made can help you predict the properties of elements that have not been discovered yet because it follows a pattern. When graphs follows patterns, you can predict things. My graph repeatedly goes up and down and up down. This means it will probably continue rising and dropping, so we can predict that un-discovered elements will have atomic radiuses that are either higher or lower, depending on where they are in the periodic table. This would be semi-reliable, but you wouldn't be able to use a graph like this for exact precision. Although the graph consistently follows a pattern, it does have unpredictable numbers. If you wanted to estimate around how large the atomic radius of an unknown element was, you could do it, but if you wanted exact answers, you would have a very hard time doing it with just a graph.
Discover:
How do the radii of metals in each period compare to the radii of nonmetals in the period?
The radii of metals in each period are much larger than those of the nonmetals in the same period. For example, sodium and magnesium (metals) have radii of 186 and 127 picometers, whereas sulfur and chlorine (nonmetals) only have radii of 103 and 91 picometers.
I observe that it starts out high, then makes a major drop, then goes up higher than before, and slides back down. Then, the line goes even higher than before, and again, it goes back down.
2.) What family is represented by the high peaks in your graph?
The alkaline metal family is represented by the peaks in my graph.
3.) What family is represented by the low points in your graph?
Group 17 (fluorine, chlorine, etc) is represented by the low points of the graph.
4.) What family is represented by the smaller peaks just before the high peaks in your graph?
The noble gasses are represented by the smaller peaks.
5.) What trends do you notice about the radii of the elements at the high peaks as you move from left to right on your graph? Look at your periodic table and find the element that represents each peak. What does each high peak begin in the periodic table?
The radii of the elements at the high peaks grow bigger. Each high peak represents a new period. The first peak represents sodium, the second one potassium, the third rubidium, and it goes on down the alkaline metal family. On the periodic table, all of these elements are on the column in the far right. They all start new periods.
6.) What happens to the radii of the elements between the two highest peaks? What does each of these groups of elements represent?
The radii of the elements in between the two highest peaks get smaller one at a time. They go 126, 125, 124, 123, 122, 121, etc. Each of these groups of elements represents a new column.
Going Further:
How can a graph such as the one you made help to predict the properties of elements that have not been discovered yet? How reliable do you think this would be? Explain.
A graph such as the one I made can help you predict the properties of elements that have not been discovered yet because it follows a pattern. When graphs follows patterns, you can predict things. My graph repeatedly goes up and down and up down. This means it will probably continue rising and dropping, so we can predict that un-discovered elements will have atomic radiuses that are either higher or lower, depending on where they are in the periodic table. This would be semi-reliable, but you wouldn't be able to use a graph like this for exact precision. Although the graph consistently follows a pattern, it does have unpredictable numbers. If you wanted to estimate around how large the atomic radius of an unknown element was, you could do it, but if you wanted exact answers, you would have a very hard time doing it with just a graph.
Discover:
How do the radii of metals in each period compare to the radii of nonmetals in the period?
The radii of metals in each period are much larger than those of the nonmetals in the same period. For example, sodium and magnesium (metals) have radii of 186 and 127 picometers, whereas sulfur and chlorine (nonmetals) only have radii of 103 and 91 picometers.
Excellent analysis of periodic trends Riena and the value of periodic trends in graphs. Perfect!
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